1. Which has more momentum, a peanut falling at 5 m/s or an elephant falling at the same speed? 2. Which has more momentum, a peanut resting on the ground or an elephant resting on the ground? 3. Calculate the momentum of a 70 kg person running at 4 m/s.

1. Which has more momentum, a peanut falling at 5 m/s or an elephant falling at the same speed? 2. Which has more momentum, a peanut resting on the ground or an elephant resting on the ground? 3. Calculate the momentum of a 70 kg person running at 4 m/s.

Astronomy

1st Edition

ISBN:9781938168284

Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Publisher:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Chapter3: Orbits And Gravity

Section: Chapter Questions

Problem 20E: What is the momentum of an object whose velocity is zero? How does Newton’s first law of motion...

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Concept explainers

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.

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What are the answers to the three questions?

Momentum & Impulse Review
Momentum = mv
Impulse = Ft
Ft-Δπην
1. Which has more momentum, a peanut falling at 5 m/s or an elephant falling at the same speed?
2. Which has more momentum, a peanut resting on the ground or an elephant resting on the ground?
3.
Calculate the momentum of a 70 kg person running at 4 m/s.

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